+AC_ARG_WITH([ndbm],AS_HELP_STRING([--with-ndbm=ARG],[use -lARG to link with ndbm]),
+ [nmh_ndbm=$withval],[nmh_ndbm=autodetect])
+AC_ARG_WITH([ndbmheader],AS_HELP_STRING([--with-ndbmheader=ARG],[#include <ARG> to use ndbm]),
+ [nmh_ndbmheader=$withval],[nmh_ndbmheader=autodetect])
+
+if test "$nmh_ndbm" = "autodetect"; then
+ if test "$nmh_ndbmheader" != "autodetect"; then
+ AC_MSG_ERROR([must specify both --with-ndbm and --with-ndbmheader or neither])
+ else
+
+ dnl There are at least four implementations of ndbm, and
+ dnl several of those can be in different places at the whim
+ dnl of the system integrator. A good summary of this mess
+ dnl can be found at http://www.unixpapa.com/incnote/dbm.html
+
+ dnl Classic ndbm with no library required (eg NetBSD): try this
+ dnl first so we don't accidentally link in a pointless but harmless
+ dnl library in one of the later ndbm.h+libfoo tests:
+ NMH_CHECK_NDBM(ndbm.h,,,
+ dnl Berkeley DBv2 emulating ndbm: header in db.h:
+ NMH_CHECK_NDBM(db.h,db,,
+ dnl Berkeley DBv1 emulating ndbm:
+ NMH_CHECK_NDBM(ndbm.h,db,,
+ NMH_CHECK_NDBM(ndbm.h,db1,,
+ dnl Classic ndbm:
+ NMH_CHECK_NDBM(ndbm.h,ndbm,,
+ dnl glibc2.1 systems put db1 in a subdir:
+ NMH_CHECK_NDBM(db1/ndbm.h,db1,,
+ dnl GNU gdbm emulating ndbm, with header possibly in gdbm/
+ dnl and possibly needing gbdm_compat library:
+ NMH_CHECK_NDBM(gdbm/ndbm.h,gdbm,,
+ NMH_CHECK_NDBM(gdbm/ndbm.h,gdbm_compat -lgdbm,,
+ NMH_CHECK_NDBM(ndbm.h,gdbm,,
+ NMH_CHECK_NDBM(ndbm.h,gdbm_compat -lgdbm))))))))))
+
+ fi
+else
+ dnl We don't really need to check that the user-specified values work,
+ dnl but it is a convenience to the user to bomb out early rather than
+ dnl after configure and half the compile process.
+ NMH_CHECK_NDBM([$nmh_ndbmheader],[$nmh_ndbm])
+fi
+
+if test "$nmh_ndbm_found" = "no"; then
+ AC_MSG_ERROR([could not find a working ndbm library/header combination])
+else
+ dnl Now export the lib/header to our makefile/config.h:
+ if test x"$nmh_ndbmheader" != x; then
+ AC_DEFINE_UNQUOTED(NDBM_HEADER, <$nmh_ndbmheader>,
+ [Define to the header containing the ndbm API prototypes.])
+ fi
+ if test x"$nmh_ndbm" != x; then
+ NDBM_LIBS="-l$nmh_ndbm"
+ else
+ NDBM_LIBS=
+ fi
+ AC_SUBST(NDBM_LIBS)
+fi